1148249665 has 16 divisors (see below), whose sum is σ = 1414123776. Its totient is φ = 894744000.

The previous prime is 1148249659. The next prime is 1148249741. The reversal of 1148249665 is 5669428411.

It is a happy number.

It is not a de Polignac number, because 1148249665 - 2³ = 1148249657 is a prime.

It is a super-3 number, since 3×1148249665³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13140 + ... + 49690.

It is an arithmetic number, because the mean of its divisors is an integer number (88382736).

Almost surely, 2^1148249665 is an apocalyptic number.

It is an amenable number.

1148249665 is a deficient number, since it is larger than the sum of its proper divisors (265874111).

1148249665 is a wasteful number, since it uses less digits than its factorization.

1148249665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36720.

The product of its digits is 414720, while the sum is 46.

The square root of 1148249665 is about 33885.8328066465. The cubic root of 1148249665 is about 1047.1577448088.

The spelling of 1148249665 in words is "one billion, one hundred forty-eight million, two hundred forty-nine thousand, six hundred sixty-five".